Metallic flume



Sept. 18 1923. W. L. CALDWELL METALLIC FLUME Filed Nov. 17 1919 2 eets-Sheet 1 Sept. 18 1923.

- RA58A95 W. L. CALDWELL v METALLIC mums Filed Nov. 17, 1919 2 Sheets-Sheet 2 Patented Sept. 18, 1923. r

WILLIAM. L. CALD'WELL OF CANTON; GI-IIO, ASSIGNOR,-

UNITED ALLOY- STEEL oonroanrroiv, YORK.

BY MESNE ASSIGNMENTS, T0 or cannon, OHIO, A CORPORATION on NEW l arm-name rnoivrie. r

hpplication fi led November 17, isle. Serial No. 339,697. 7

To all whom-it may concern:

Be it" known that I, YVILLIAM LTCAL W LL, a citizen of the United States, resid ingmat Canton, in the county of Sit-ark and 'State of Ohio, have inventedia' new and useful Metallic Flume,ro f which the following is aspecification. i

The invention relates to improvements in metallic flumes in which a thin metal trough is used for conveying water for irrigation or similar purposes, the metal trough being formed of successive sections of proper curvature and joined together to form a continuous channel. erection of flumes "of. this characten'the joints "between the several sec'tionsshould be made with a minimum of separable parts an'dwithout rivets or bolts, and to provide a water tight joint be'tween'the several secti'ons, means should beprovided for clamp ing the overlapped ends of the sections tightly together. The joints should further ing flanges and with'periphera'l corruga add a certain amountof circumferential stiffness to the thin shell'of the flume sections. and should be made water-tight with} out the use of solder or the like. 7 j" The objects of the invention are to provide a fiume with a water tight joint without the use of rivets, bolts or solder; to provide 'a jointbetween the flume sections in which no outer clamping bar or" inner pres sure bar is usedyto provide a joint between the flume sections having interior means for forcing the parts into position thus aiding materially-in assembling the fiumeand preventing displacement of the parts'by strains placed thereon; to provide means .forti'r- Icumferentially stiffening" the, structure; to provide, a flumehaving an integralfpres- "sure member and an integral clamping inen "her; and to generally improve'and simplify the construction of sheet mealtimes. The above objects are attained providing a sheet metal flumeinade upfofsemi-- circular sections, the sections.being'provided at their 1 ends" with external stiffen? itions' or ribs 'arranged'to nest withiiiea'ch other, the corrugated end of one: section b ing nested within the corrugated flanged end of the adj ace nt section and "clamped by "pro? viding structuraliron hanger; which lengages the edges of the interlapped'end and is provided with means for draw ng the outerlapped end against the nterlapped To. facilitate sponding parts throughout the several views.

end, forforc'ing the corrugationbf the inner section into tight engagement with the corrugation of the outer or flanged section; I -The invention thus setforth in general terms isxillustratecl in the accompanying drawings forming part hereof, in whichl igure 1 1s a perspective view of porions of two sections of flume showing the oint. j j j F g. 2 is a plan viewofportions of two sect ons of flume at the joint. 7

Fig. 3 isa view similar to Fig. 2 of a slightly different arrangement of flume sections. V

V a is a transverse sectional view through the joint of thefiume sections.

Fig. 5 is an enlargerl sectional view showmg the function of the locking tongue. -A pra'ct1cal embodiment of the invention is dlsclosed'in the accompanying drawings, forming a part of this specification inrwhich similar numerals of reference'indicate corre- Circumstances often require theconstruction of flumesof considerable length, the flume being supported at a considerable distance above the ground, it often being necessary to conduct water across a valley and at the same timemainta'in the proper level and inclination of the flume in order that the Water may becarried over elevations. This requires the erection of a trestle or other frame work which is of considerable height atflso'me points while at other points the frame work maybe comparatively near'the ground, suitable hangers 1 being carried by the frame work for supporting the flume.

The flume sections 2 (Fig. 2) or Q and 2 (Fig 3) are preferably formed of sheet metal of semi-circular cross section, the sections2 being made universah each section having atonefend an outwardly pressed corrugation or bead 3 1arrange ;l to be nested within a similar outward'ly*pressedcorru ga- .tion a upon the adjacent end of the next adjacent sectionfan integral externalstifi'ening flange 5 'being formed'adjacentto the cori'ugatio rfil E 'at oi end with an'external corrugation or 'rib 3 and at its other endlwitha corrugation or groo ve 4 and with an external stiffening flan es; j a V =Referring to the construction shown in Fig. 3 the flume sections 2 and 2 alternate ach section 2 is thus provided means being provided upon thehanger V overlapped ends, external integral stiflening means on the overlapped end and a pcripheral corrugation in theinnerlapped end abutting the hanger, a peripheral corrugation in'the outerlapped end receiving the "corrugation" in the innerlapped end,- and means on the ends of the external stiffening means for clamping the outerlapped end against the innerlapped end;

' v 3. A metallic flume including adjoining sections having overlapped ends, an external flange on the outerlapped end, a transverse hanger adjacent to the edges of the overlapped ends, an external rib upon the innerlapped end abutting the hanger, an internal groove upon the outerlapped end receiving said rib and means for drawing the externalflange toward the hanger and clamping the outerlapped end against the innerlapped end. 7

4:, A metallic flume including adjoining sections having overlapped ends, an external flangeon the outerlapped end, a transverse hangenadjacent to the edges of the" overlapped ends, a peripheral corrugation in the innerlapped end abutting the'hanger,

a peripheral corrugation in the outerlapped end receiving the corrugation in the innerlapped end, flexible lugs on the hanger for forcing the inner corrugation outward at the sides'of the flume and means for drawing the ends of the flange '1 toward the hanger for clamping the outerlapped end against the innerlapped end.

5. A metallic flume including adjoining sections having-overlapped ends, a transverse hanger adjacent to the edges of the overlapped ends, means abutting the hanger and staying the innerlapped end against external pressure, and means clamping the overlapped end against the innerlapped end, there being outwardly directed tongues struck downward from the transverse hanger inside the ends of the staying means of the innerlapped end and wedged upward against the same to press them outward.

6. A metallic flume including adjoining sections having overlapped ends, a transverse hanger adjacent to the edges of the overlapped ends, a peripheral corrugation abutting the hanger and staying the innerlapped end against external pressure, and means clamping the overlapped end against the innerlapped end, there being tongues struck from the transverse hanger extending downward and outward and being driven upward to impinge the inner sides of the staying means and to force and lockrthe same outward against the outer lapped end of the Hume section. 

